Fan.



P. A. ANDERSON..

FAN.

APPLICATION FILED IULY 31.1917.

Patented Aug. 27, 1918.

2 SHEETS-SHEET l.

P. A. ANDERSON.

FAN.

APPLICATION FILED IIILY aI. I9I7.

Patented Aug. 27, 1918.

2 SHEETS-SHEET 2.

\ 'lilllll WITNESSES amg/Mq PER AUGUST ANDERSON, or NEW Yoan, n. Y.

FAN.

Specicati-on of Letters Patent. y Patented ug. 27, iglgov Application led July 31, 1917. SeriaINo. 183,681.

To all whom it may concern:

Be it known that I, PER AUGUST ANDER- soN, a citizen of the United States, and resident of the borough of 'Manhattam city, county, and State of New York, have invented a certain new and useful Improvement in Fans, of which the following is a specification.

lin which said fan is adjustable to swing in dierent planes.

My invention further contemplates a conl struction in which the operation is substantially noiseless and in which the oscillation of the fan member is const-ant and even and in which vibration and irregular movement is avoided. Other objects of my improvement will appear from the description hereinafter and the features of novelty will be pointed out in the appended claims.

l'n the accompanying drawings, which for illustrative and descriptive purposes show an example of my improvement, Figure 1 is a vertical section of' my improved construction; Fig. 2 is an elevation looking at right angles to Fig. 1' Fig. 3 is an enlarged detail section of th its casing; Fig. 4 is a detail lelevation of the same, partly broken away; Fig. 5 is a detail section on the line 5-5 of Fig. 3 and Fig. 6 is a detail plan view of a supporting frame forming part of my improved construction.

As shown in the illustrated example, my improvement comprises a preferably cylindrical casing l0 of suitable material and closed at one end means of a preferably `removable cover 11 detachably secured in position for instance by means of screws or the like 12, and preferablyprovided with a manipulating knob 11a. At its opposite end the casing 10 is provided withy a plurality of preferabl integral arms 13 which extend outwar ly4 from said casing in an axial direction and converge toward each other, the outer ends of said arms being connected together by spaced and parallel cross-pieces 14. This construction provides a tapering spider which projects from one end of said casing l0 in axial registry therewith; in the e driving mechanism and` normal, operative condition of the parts this spider is covered by a tapering shell 15 which lits over the arms 13 and is detachably secured in position in any suitable manner as by means of screws 16. It willbe seen that thecasing 10, cover 11 and shelll5 when combined, form a complete casing, the one end of which is closed and the other tapering end of which is open as shown in Figs. 1, 3 and 4. The arrangement further includes a member 17 internally screwthreaded to receive the screw-threaded stem 18 of a head 19 to which the fan member 2O of any suitable or well known construction is secured in any convenient manner. The member 17 forms part of a disk 21 rotatably mounted between the cross-pieces 14 at the open end of they shell 15 as shown in Figs. 3 4and 4. In the illustrated example the disk 21 is operatively combined with a sprocket member or Wheel 22 so as to rotate therewith, said sprocket memberor wheel accommodating a sprocket chain 23, the opposite ends of which are connected by means of coil springs 24, with links 25. The latter are in turn pivotally connected with cranks 26 located at opposite ends of a shaft 27 in off-set relation to each other, said shaft 27 being journaled in a housing 28. The shaft 27 carries a worm wheel 29, which meshes with a worm gear 30, the Worm wheel and worm gear being both located within the housing 28 as shown in Fi 3. The worm gear 30 is carried by 'a sha 31 one'end of which is journaled in a cap 32 detachably combined with the housing 28 and the other end of which is rotatably mounted in and extends through said housing 28 as shown in Fig. 3. The projecting end ofthe shaft 31 carries a wheel 33 which is provided, preferably at diamet' rically opposite points, with pins or lugs 34 extending outward substantially perpendicular to the face of the wheel 33. The wheel 33 is preferably formed with a rather heavy rim so as to act in the nature of a fly-wheel or balance wheel when the fan is in operation. The lugs 34 project through o enings 35 formed in an opposed disk 36 w ich is preferably constructed of leather or similar material mounted uppn a carrier 36a, said disk 36 and carrier 36a being carried by the power or driving shaft 37 of an electric motor 38. The latter is connected by means of wires 39 which pass through an axial opening 1lb of the knob 11a, with a coupling En@ from unintentionally sliding for instance b member d0 arranged to be detachably connected with a coperating coupling1 member al connected by means of wires d2 with a source of electricity. rlhe housing 28 and its coperating parts and the motor 38 with its coperating parts are both secured upon a platform a3 located within the casing and supported upon lugs da. rl`he latter are provided with screw-threaded recesses for the reception of screws l5 which pass respec tively through the casing l0 and through an arm 13 and whereby the platform a3 and with it the housing'28 and motor 33 are rigidly and securely fastened in operative position within the casin as a single unit.

ln ,prder to suspen the fan from the ceiling or other support, the casing 1G is provided with a pair of annular ribs d6, between which a split collar 47 fits, as shown in Figs. l and 2, said collar beingprovided with lugs a8' having screw-threaded apertures for the accommodation ,of a thumb screw i9 whereby the collar 47 is spread and con tracted. rl`he collar 47 isformed with two upright, integral members 50 terminating in a sleeve 5l which in the illustrated example fits upon the end of a tube 52 and is secured thereon for instance by means of a screw 53. rlhe tube 52 is slidably mounted or telescopes within a second tube 5e, the upper end of which is secured toa. carrying member 55 means of a screw 56, said carrying mem er 55 being fastened to the ceiling or other support 57 in any suitable manner as by means or screws 53. A packing 59 is provided at the outer end of the tube 54e in engagement with the tube 52 and is held in operative position by means of Va suitably shaped cap 60 which is in screwthreaded engagement with said tube 54 as shown in Fig. l. A similar packing 6l is located at the inner end of the tube 52 in engagement with the inner surface of the tube 5a and is secured in position by means of a preferably tubular cap 62 which screws into the inner end of said tube 52 as shown in Fig. l. rlhese packings 59 and 6l are adjusted so as to provide the desired frictional engagement between the telescopic tubes 52 and 54 and to prevent the inner tube 52 downward relatively to the outer tubes 5d. lt will be seen that the position or height ,of the fan may be readily adjusted within the limits of the construction by simply sliding thetube 52 into or out of the tube 54. ln the preferred construction a coil spring 63 is provided for assisting the raising of the fan and for preventing a' complete separation of the tubes 52 and 54. As shown in Fig. l the coil spring 63 is located within the tube 5t and has its one end connected with a crossbar 64e carried by the cap 62 and its other end connected with. a cross-bar 65 located within the carrying member`55. l further prefer to Laterna wires a2 may be run through the tubes 52 and 5d to the source of electrical power as indicated in Fig. l.

ln operation the motor 38 is electrically driven and drives the shaft 37 which in turn rotates the disk 36 and its carrier 36a; the rotative motion of the disk 36 is communicated to the disk 33 through the medium of the pins or lugs 3a and thus brings about an actuation of the shaft 3l and worm"l gear 30. Owing to the fact that the disk 36 is made of leather or the like this transmission of i motion from the motor 38 to the shaft 31 and worm gear 30 is absolutely noiseless and without vibration. rlllhe wheel 33 acting as a flywheel or balance-wheel also helps to steady the rotary motion of the parts and to render the transmission substantially constant and free from jerks. rlhe actuation of the worm gear'30 in turn causes a rotation of the worm wheel 29 and shaft 27 whereby the cranks 26 are operated in a circle as will be readily apparent from the drawings. is the cranks 26 are thus actuated a pulling force will be alternately exerted on each link 25, which force will be resiliently transmitted to the sprocket chain 23 by the springs 2a and through the medium of the sprocket 22 will oscillate member i7 and fan member 2O in a manner corresponding substantially n a manual operation of any usual hand an.

rlhe addition .of the springs 2a in the coni nections between the driving mechanism and the fan member renders the oscillation of the fan member 20 absolutely even and noiseless and at the same time by providing the necessary delribility9 permits the mechanism to pass the dead centers without bringing about any sudden breaks in the i movements of the'fan member. The oscillation of the latter is thus absolutly smooth and free from any jerkiness. ln addition to this said springs will permit the fan' member to yield relatively to the driving mechanism if said fan member 1n its oscillations should encounter an obstacle of any kind. Similarly if a person should come into accidental contact with said fan member it will give or yield, without injury to the person or to itself or its coperating mechanism.

rlhe fan member 20-may be caused to oscillate in any desired vertical plane by i f dit@ simply first loosening the screw 49 to release the pressure of the collar 47 upon the casing l0 and then rotating said casing in said collar until the fan member reaches the desired position. The thumb screw 4S) is then again tightened up to again cause the collar 47 to securely grip the casing 10 which as a result is clamped in the adjusted position. The motor 38, housing Q8, and their connected and coperating parts all partake of the adjusting movement ot' the casing l() and fan member 20.

ln any position the fan member 20 is oscillated to produce a gentle disturbance ot' the air whereby an air current is created which is coolingl and beneficial aud in no case constitutes a draft. The apparatus may be conveniently adjusted to the proper height. by simply sliding the inner tube 52 into and out ot' the outer tube 54; it will be understood that the apparatus is held in its adjusted position by friction assisted by the action of the spring 63.

My improved fan construction is extremely simple in construction and etiicient in operation and at the same time presents a highly ornamental appearance at all times; the apparatus may beeasil y and quickly suspended from any desired support.

All parts of the structure are readily accessible for cleaning and other purposes and may be readily disassembled it' this should be desired for any reason. lVhen the need for the fan has temporarily passed the tube 52 carrying `the casing, the motor, the fan member and cooperating parts may be completely disconnected from the tube 51 and stored away, ready to be operatively re-assembled when desired. This makes it unnecessary to disturb the outer tube and its carrier unless it should be desired. l

The subject matter of the present case is of the same general class as that contained in my Patent, No. 1,261,753 of April 9, 1918.

Various changes in the specific form shown and described may be made within the scope of the claims without departing from the spirit of my invention.

1 claim:

1. The combination of a depending support, a member extensibly connectedj with ried b v said casing and actuated by said mechanism.

2. The combination ot' a depending extensible supporting' device, a forked member detachably fixed upon the same, a collar carricd by said forked member and located in a. plane transverse to said device, a casing rotatably mounted in said collar and having an axis of rotation common to the axis of the collar, actuating mechanism in said casing and a pivoted fan member carried by said casing and actuated by said mechanism.

3. The combination of supporting means, a fan member pivotally connected with said means, actuating mechanism carried by said means, and a pair of resilient connections between said actuating mechanism and said tan member operating in opposition to each other whereby said fan member is oscillated on its pivot, nrst in one direction and then in the opposite direction.

Jr. The combination of a casing, driviim mechanism within said casing, a driven shaft operatively connected with said mechanism, ott-set cranks carried by said shaft, a fan member pivotally connected with said casing and resilient connections between said cranks and said fan whereby the latter is oseillated on its pivot.

5. The combination of a. casing, driving mechanism within said casing, a driven shaft operatively connected with said mechanism, ott-set cranks carried by said shaft, a fan member nivotally connected with said casing, a sprocket. member connected with said t'an member. a sprocket chain operatively combined with said sprocket member, links pivotally connected with said cranks and coil-springs connecting said links with said sprocket chain.

ln testimony whereof, I have hereunto set my hand.

PER AUGUST ANDERSON. 

